import pandas as pd
list=[[110,120,105],[95,110,108],[98,80,100],[112,106,97]]
index=['王蒙','李珊','赵胜','刘文']
column=['语文','数学','英语']
df=pd.DataFrame (list,index,columns)
print('原始数据:\n'df)
print('选取所有学生的语文成绩:\n'df['语文'])
print('选取所有学生的语文和数学成绩:\n'df['语文和数学'])
print('选取王蒙到赵胜的语文和英语成绩:\n'df[['语文','英语']]['王蒙':'赵胜'])
print('选取李珊及后面同学的所有成绩:\n'df[['语文','数学','英语']]['李珊':])